Silence with background noise causing transcript to misalign

Another small issue. Sometimes the transcriptions are all shifted significantly forward in time. So that the transcription occurs seconds before the speech. This usually adjusts itself later in the transcript.

In this screenshot, the word "I'm" appears in the transcript at the position displayed at the bottom of the screen, but in the audio it is not spoken until the highlighted section on the right. Before that, there is only low background noise. This seems to happen mostly in moments of no speech. I wonder if the way the audio is cut up before processing is causing this.